1998 series 2 3800 (L67) & 4t65E auto HD tranny from buick regal gs 2007 gen 5 supercharger with N* TB & spacer 2000 N* MAF 3.25" zzp pulley XP Hot Cam walbro hi-flo fuel pump 105# comp cam valve springs, pushrods, lifters, mod retainers zzp 1" short stack intercooler colder plugs: NGK TR6 V-power zzp 10mm plug wires stock heads cold air intake low mount alternator QUESTION(S):
A) what have u guys done for exhaust manifolds? B) what size & style/type of injectors to use? links/part numbers helpful C) what pump to use for IC system? from where/which one?
i'll leave it at these three questions for now but more to come! Thanks in advance all!
Nick
[This message has been edited by OHNIKO (edited 05-15-2015).]
My exhaust is 3" out of the rear manifold to a crossflow afterburner muffler with dual 2 1/2" outlets to a set of Heddman Hot tips (dual tips) I tried the Powerlog manifold from ZZ Performance but I was not crazy about the fit. Am modifying it for more A/C compressor clearance. All of the header setups that I've seen on 3800SC swaps don't allow room for the trunk. Its small enough as is and I want to keep it for overnight trips. I run a similar setup to yours with the SSIC and so far no KR's through the power band. With a 3.4" pulley, max boost is 11 psi at WOT. Those series V superchargers really put out the boost.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
I have pretty much the same setup, XP w/140#, full size intercooler, Gen V / N*, 3.0 pulley. A) ZZP power log / ported ssei manifold B) Bosch Green Giant 42.5's C) Bosch Cobra pump.
I built an exhaust using rear manifold exit. Buil a custom y-pipe off manifold. Spilt into two 3" Jones turbo tube mufflers and stock tops modified to accept 3" pipes. Sounded great. Will post some pics for you as soon as I figure out how..lol
I'm running stock manifolds, trunk cut, and am trying to find out if the rams horn style 3.8 manifolds are ok to use, since all the stuff I find says '99+, but you need AC delete. It looks like the rams horns would have AC clearance. This is on a stock motor.
There was a guy on this forum who adapted a set of headers for a 3.8L Mustang on his 3800 swap. IIRC the spacing of the tubes on the manifolds were good, they fit without truck cutting, but I believe that he had to cut , rotate and re-weld the flanges to match the pattern on the GM heads. Never followed up to find out the result, but we may be able to gather some info in the archives. UPDATE Found it: It was fieroflyer
Apparently he completed the install. These header tubes look large. Full info here: https://www.fiero.nl/forum/A...090219-2-086570.html " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
[This message has been edited by Dennis LaGrua (edited 05-09-2015).]
Yep the Mustang manifolds fit and work very nicely but the center port has to be cut and turned a little then all port need to have mounting holes elongated a bit to bolt up. I find it easier to just cut up a stock rear manifold for the flange with a little port left on and weld the mustang manifold with its flange cut off to the stock 3800 flange looks cleaner and bolts on better and you can keep the EGR if wanted
A) what have u guys done for exhaust manifolds? B) what size & style/type of injectors to use? links/part numbers helpful C) what pump to use for IC system? from where/which one?
i'll leave it at these three questions for now but more to come! Thanks in advance all!
Nick
I am really not fond of the deep Fiero trunk, so I cut it out of all my cars and left a half trunk. That does allow more options for the exhaust. I ran custom unequal length headers. The unequal length give a better sound IMO, and that is what I was aiming towards.
My setup is a little more aggressive than yours. 42lb injectors should work for you. I am running 52lb injectors because the 42lb ones were going static and 60lb ones were overkill.
I am running a Bosch auxiliary water pump that was originally for a Mercedes. Probably very similar to what ZZP sells, but I wanted a certain flowrate with my setup due to the hose size I chose to use and the Benz pump met the specs.
Oh, is their front our rear? confoozed. pls clarify for us newbie non-experts! Also, will I need a new set of manifold gaskets? ...not sure if old ones are re-usable/shot yet...
Oh, is their front our rear? confoozed. pls clarify for us newbie non-experts! Also, will I need a new set of manifold gaskets? ...not sure if old ones are re-usable/shot yet...
B) & C)...i'll ask in new threads to keep it cleaner
thanks again!
Nick
You want the ZZ SS Front Powerlog. That replaces the restrictive front manifold. It will fit good but my complaint was that the clearance to the A/C compressor on the series III engine was a little too close fo rmy comfort level. We just used a 10 ton press to smooth the OD about 1/16" on the bottom. Not the ideal way to do it but it works and I don't believe that we lost much if any flow
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
because I'm assuming the stock oem chain has not been replaced and is stretched, is a double -roller timing chain necessary/better or is the single roller adequate for my set up? (i'm running 105 pounds valve springs)
cheerio
[This message has been edited by OHNIKO (edited 05-27-2015).]
